I had something unusual happen to me this week. I went to use my Visa Check Card at the ATM at work and it was denied saying that it was on an invalid account. I called the bank and they told me that Visa had notified them that a lot of the cards had been compromised. The bank then cancelled all the debit cards that were affected. I have been watching my account and there haven't been any fraudulent charges. I had received a new card from my bank a couple of days previously because they are changing to a Mastercard Check card. I just thought it was scarey that this happened. The girl at the bank told me she had had lots of calls regarding this and to expect a letter.